[Samba] User executional bit set when creating/modifying file on linux server from linux client

[Fredrik Liljegren]

Whenever I create or modify a file on my cifs-mount, be it by `echo
"test" >> file` or from bash, the file mode is changed with u+x.
However, that does not happen with touch, and usign chmod u-x works as
it should.  This is very annoying...

It is a linux samba server running samba 3.0.24.  I know it's not the
latest, and if you know there was a bug fixed that can solve my problem,
I can probably get the serveradmins to upgrade it... but if it's a
config problem, that's easier...

I use linux mount.cifs version: 1.12-3.4.3

On another computer here, runnig ubuntu instead of debian, and
mount.cifs 1.12-3.3.2, modifying files does NOT set u+x!



Example:

Initial directory:

fiddur at ydalar:~/mnt/liljegren/tmp$ ls -la
totalt 0
drwxrwxr-x  2 fiddur fiddur 0  2 dec 09.51 .
drwxrwsr-x 15 fiddur fiddur 0  2 dec 09.51 ..


Creating file with touch doesn't get any u+x:
fiddur at ydalar:~/mnt/liljegren/tmp$ touch test1
fiddur at ydalar:~/mnt/liljegren/tmp$ ls -la
totalt 0
drwxrwxr-x  2 fiddur fiddur 0  2 dec 09.52 .
drwxrwsr-x 15 fiddur fiddur 0  2 dec 09.51 ..
-rw-rw-r--  1 fiddur fiddur 0  2 dec 09.52 test1


Creating a file by output redirection gives u+x:
fiddur at ydalar:~/mnt/liljegren/tmp$ echo "hej" > test2
fiddur at ydalar:~/mnt/liljegren/tmp$ ls -la
totalt 4
drwxrwxr-x  2 fiddur fiddur 0  2 dec 09.53 .
drwxrwsr-x 15 fiddur fiddur 0  2 dec 09.51 ..
-rw-rw-r--  1 fiddur fiddur 0  2 dec 09.52 test1
-rwxrw-r--  1 fiddur fiddur 4  2 dec 09.53 test2

Removing with chmod works:
fiddur at ydalar:~/mnt/liljegren/tmp$ chmod u-x test2
fiddur at ydalar:~/mnt/liljegren/tmp$ ls -la
totalt 4
drwxrwxr-x  2 fiddur fiddur 0  2 dec 09.53 .
drwxrwsr-x 15 fiddur fiddur 0  2 dec 09.51 ..
-rw-rw-r--  1 fiddur fiddur 0  2 dec 09.52 test1
-rw-rw-r--  1 fiddur fiddur 4  2 dec 09.53 test2

Modifying with appending redirection adds u+x too:
fiddur at ydalar:~/mnt/liljegren/tmp$ echo "test" >> test1
fiddur at ydalar:~/mnt/liljegren/tmp$ ls -la
totalt 8
drwxrwxr-x  2 fiddur fiddur 0  2 dec 09.53 .
drwxrwsr-x 15 fiddur fiddur 0  2 dec 09.51 ..
-rwxrw-r--  1 fiddur fiddur 5  2 dec 09.54 test1
-rw-rw-r--  1 fiddur fiddur 4  2 dec 09.53 test2



Additional info:

fiddur at ydalar:~/mnt/liljegren/tmp$ cat /proc/fs/cifs/DebugData
Display Internal CIFS Data Structures for Debugging
---------------------------------------------------
CIFS Version 1.58
Active VFS Requests: 0
Servers:
1) Name: xxx.xxx.xxx.xxx  Domain: XXXXXXXX Uses: 1 OS: Unix
    NOS: Samba 3.0.24    Capability: 0x80f3fd
    SMB session status: 1    TCP status: 1
    Local Users To Server: 1 SecMode: 0x3 Req On Wire: 0
    Shares:
    1) \\EFFIE\liljegren.devshop Mounts: 1 Type: NTFS DevInfo: 0x0
Attributes: 0x2b
PathComponentMax: 255 Status: 0x1 type: 0

    MIDs:


Regards, Fredrik